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powerpc: Improve prom_printf() 

Adds the ability to print decimal numbers and adds some more
format string variants

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
hifive-unleashed-5.1
Benjamin Herrenschmidt 2011-04-06 10:51:17 +10:00
parent dd79773864
commit af2771493a
1 changed files with 25 additions and 1 deletions
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26
arch/powerpc/kernel/prom_init.c
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@ -335,6 +335,7 @@ static void __init prom_printf(const char *format, ...)
const char *p, *q, *s;
va_list args;
unsigned long v;
long vs;
struct prom_t *_prom = &RELOC(prom);
va_start(args, format);
@ -368,12 +369,35 @@ static void __init prom_printf(const char *format, ...)
v = va_arg(args, unsigned long);
prom_print_hex(v);
break;
case 'd':
++q;
vs = va_arg(args, int);
if (vs < 0) {
prom_print(RELOC("-"));
vs = -vs;
}
prom_print_dec(vs);
break;
case 'l':
++q;
if (*q == 'u') { /* '%lu' */
if (*q == 0)
break;
else if (*q == 'x') {
++q;
v = va_arg(args, unsigned long);
prom_print_hex(v);
} else if (*q == 'u') { /* '%lu' */
++q;
v = va_arg(args, unsigned long);
prom_print_dec(v);
} else if (*q == 'd') { /* %ld */
++q;
vs = va_arg(args, long);
if (vs < 0) {
prom_print(RELOC("-"));
vs = -vs;
}
prom_print_dec(vs);
}
break;
}